/**
 * Software License, Version 1.0
 * 
 * Copyright 2003 The Trustees of Indiana University.  All rights reserved.
 * 
 *
 *Redistribution and use in source and binary forms, with or without 
 *modification, are permitted provided that the following conditions are met:
 *
 *1) All redistributions of source code must retain the above copyright notice,
 * the list of authors in the original source code, this list of conditions and
 * the disclaimer listed in this license;
 *2) All redistributions in binary form must reproduce the above copyright 
 * notice, this list of conditions and the disclaimer listed in this license in
 * the documentation and/or other materials provided with the distribution;
 *3) Any documentation included with all redistributions must include the 
 * following acknowledgement:
 *
 *"This product includes software developed by the Community Grids Lab. For 
 * further information contact the Community Grids Lab at 
 * http://communitygrids.iu.edu/."
 *
 * Alternatively, this acknowledgement may appear in the software itself, and 
 * wherever such third-party acknowledgments normally appear.
 * 
 *4) The name Indiana University or Community Grids Lab or NaradaBrokering, 
 * shall not be used to endorse or promote products derived from this software 
 * without prior written permission from Indiana University.  For written 
 * permission, please contact the Advanced Research and Technology Institute 
 * ("ARTI") at 351 West 10th Street, Indianapolis, Indiana 46202.
 *5) Products derived from this software may not be called NaradaBrokering, 
 * nor may Indiana University or Community Grids Lab or NaradaBrokering appear
 * in their name, without prior written permission of ARTI.
 * 
 *
 * Indiana University provides no reassurances that the source code provided 
 * does not infringe the patent or any other intellectual property rights of 
 * any other entity.  Indiana University disclaims any liability to any 
 * recipient for claims brought by any other entity based on infringement of 
 * intellectual property rights or otherwise.  
 *
 *LICENSEE UNDERSTANDS THAT SOFTWARE IS PROVIDED "AS IS" FOR WHICH NO 
 *WARRANTIES AS TO CAPABILITIES OR ACCURACY ARE MADE. INDIANA UNIVERSITY GIVES
 *NO WARRANTIES AND MAKES NO REPRESENTATION THAT SOFTWARE IS FREE OF 
 *INFRINGEMENT OF THIRD PARTY PATENT, COPYRIGHT, OR OTHER PROPRIETARY RIGHTS. 
 *INDIANA UNIVERSITY MAKES NO WARRANTIES THAT SOFTWARE IS FREE FROM "BUGS", 
 *"VIRUSES", "TROJAN HORSES", "TRAP DOORS", "WORMS", OR OTHER HARMFUL CODE.  
 *LICENSEE ASSUMES THE ENTIRE RISK AS TO THE PERFORMANCE OF SOFTWARE AND/OR 
 *ASSOCIATED MATERIALS, AND TO THE PERFORMANCE AND VALIDITY OF INFORMATION 
 *GENERATED USING SOFTWARE.
 */
package cgl.narada.discovery.broker.bdn;

import java.util.Hashtable;
import java.util.Set;

import org.apache.log4j.PropertyConfigurator;

/**
 * The table is implemented as an in-memory Hashtable. This is good for normal
 * purposes. However in future, this interface can be used to provide a file or
 * DB based Entry table <br>
 * Created on Mar 29, 2005
 * 
 * @author Harshawardhan Gadgil (hgadgil@grids.ucs.indiana.edu)
 */
public class BrokerTableManager {
    private static Hashtable brokerTable = new Hashtable();
    
    static {
        PropertyConfigurator.configure("log4j.properties");
    }

    public static void put(String uuid, BrokerTableEntry o) {
        brokerTable.put(uuid, o);
    }

    public static BrokerTableEntry get(String uuid) {
        return (BrokerTableEntry) brokerTable.get(uuid);
    }

    public static void clear() {
        String [] listOfBrokers = list();
        for(int i = 0; i< listOfBrokers.length; i++) {
            BrokerTableEntry be = (BrokerTableEntry)brokerTable.remove(listOfBrokers[i]);
            be.brokerConnection.releaseResources();
        }
    }

    public static void removeEntry(String brokerUUID) {
        brokerTable.remove(brokerUUID);
        System.out.println("Remaining Entries: " + list().length);
    }

    public static String[] list() {
        Set brokerUUIDKeySet = brokerTable.keySet();
        return (String[]) brokerUUIDKeySet.toArray(new String[brokerUUIDKeySet
                .size()]);
    }
}
